Measuring-pump.



N. D. HULL.l MEASURING PUMP. APPLLcATxoN FILED DEc.2o,1915.

Patented Jan. 14, 1919.

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N. n; HULL.. -MEASURINYG PU'MP. APPLICATION FILED DEC. 20.1915.-

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MEASUHINGPUMP.

APPucMlon man nzc.2o. 1915.

Patented Jan. 14., l191.9.

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Armen/Em UNITED STATES PATENT OFFICE.

NATHNIEL D. HULL, 0E OWENSBORO, KENTUCKY, ASSIGNOR T0 HULL- PUMP AND TANK COMPANY, 0F OWENSBORO, KENTUCKY, A CORPORATION.

mEAsUaING-PUMP.

Specication of Letters Patent.

Patented Jan. 14, 1919.

yTo all whom z't may concern:

Owensboro, in thecounty of Daviess and State of Kentucky, have invented new and useful Improvements in Measuring-Pumps, of which the-following is a specification.

The invention relates to certain improvements in measuring pumps. A

The wide use of the automobile has increased the demand for apparatus by which gasolene and other liquids may be dispensed in measured quantities. In all such devices .it desirable that the mechanism shall be easily operated, and where it is installed out of doors, it is essential that it shall be protected against the weather and be incapable of unauthorized operation. The speed with which a desired quantity of liquid shall Vbe delivered by the device is also an important feature.l 4

The objects of my invention are to provide a pumpwhich shall be rapid in operation and shall accurately measure the fluid discharged by it, the pump having novel driving and measuring mechanisms. Another object is to Vprovide the pump With a novel and eicient device by which 1t is locked a ainst unauthorized operation.

Other objects will appear in the detailed description of the embodiment of my invention illustrated in the accompanying drawings, in which drawings- Figure 1 is a vertical 'section of the upper halfv of the pump housing'illustrating the driving .andmeasuring' devices.

Fig. 2 is'a vertical section ofthe lower half of the pump housing illustrating thel pump cylinder and filter.

Fig.3l `s a cross-section on line 3-3 of Fig. 1.' y F Fig. 4' is a cross-,section on line 4-4 of Eig. 45 is an elevational view 'of the device with the housing-sections closed and show inthe suction pipe. Y

ig. 6 is an elevational view of the top of 'the structure illustrating an ornamental lamp post.

Fig. 7 an elevational view of the double rack and segment gear of the driving mechani'sm. y

Fig. 8 is a `central cross-sectional view taken at right angles to the view shown -in Fig. 1.

Referring to thev drawings -the entire mechanism is contained within a telescoping housing, the lower halfv 10 of which is preferably cast iron and anchored by bolts ll-to the foundation y13, and the upper half 14 of which is preferably formed of suitable sheet metal. The yupper housing is providedwith suitable handles 15 by which it may be raised and lowered about housing I0.

A plate 16 is secured' to housing 10, and standards 17 and 18 are secured at their lowerends to the plate. A plate 19 is secured to the 'upper 'ends of the standards and a dome 2O is supported by plate 19. A lamp post 21 with a globe 22 (Fig. 6) may, if desired, be' mounted on the dome for electrical illumination or sign purposes.l

l.Upperhousing l14is secured to dome 20 by a suitable bolt 23 which is secured by a 'suitable lock 24,- so that the housing may be securely locked lin its closed position. Preferably upper housing 14 will be provided with a counterbalance weight which, in practice, will be attached to thehousing by chains which pass over a sheave suitably mounted on a convenient stationary part of the structure.

Crank shaft 25 is suitably supported in bearings 26 which are cast on or secured to standards 17 and 18. Crank 27 is connected to one end of shaft 25 and is provided with a handle 28 which has a swivel connection thereto in order that it may be turned tp a vertical position to permit upper housing' 14 to clear it when the housing is opened or closed. The broken-lines (Fig. 1) indicate the. position to which handle 28 is moved for operating. the mechanism.

A spur pinion 29 is secured to crank shaft 25 and is in meshwith gear 30 which'is attached to shaft 31. An intermediate pinion 32 is also attached to'shaft 31 and is in mesh with intermediate gear 33, which gear is mounted on shaft 34. Shafts 31 and 34 are supported in suitable bearings which are cast on or carried by standards 17 and 18.

. A segment gear 35 (Figs. 3 and 7) is secured to `shaft 31 and is adapted to mesh with double rack 36 which is verticallv slidable in guides 37a which are provided on standard 18 and which is provided at its lower end with a boss 37 which is connected to plunger rod 37 (Figs. l and 7). By the rotation of shaft 31 segment gear 35 is rotated in the direction of the arrow and the yic rack is thereby aast-t1 lo reciprocate in op,

n plate 16. A double clutch 44 slidably but not rotatably mounted on shaft 14 and is adapted to mesh with either half clutch 39 or 40. Then `it engages the fixed half 40 the pump mechanism is locked and cannot be operated. and when it engages the loose half 39 the mechanism is operative and .measuring rack 41 is elevated.

In order that double clutch 44 may be shifted from one clutch 40 toy clutch 39 l provide a fork 45 which loosely engages clutch 44 and is pivotallv mounted on shaft 46. A lever 4T which is opposed by springl` 47' is alsoyconnected to this shaft and to the lower end of the lever is pivoted a lock dog 48, and spring 49. which is connected to both the dog and the lever and tends to elevate the dog on its pivot..

n A stop plate 50 is supported on guide bars 51, which bars extend transversely of housing 14 and upon which bars plate 50 may be moved. A knob 52 is attached to plate 50 and is provided with pointer 53 which registers .with an indicating plate 54. upon which plate are stamped or otherwise indicated in horizontal alinement the selected quantities of liquid to be'meas'ured by the pump,such, for eXample as one quart, one half gallon, one gallon, etc. On plate 50 are provided stops 55l which are arranged at predetermined points according to the graduations on indicator plate 54. A suitable lug 56 is also provided on plate 50, the forward end 4of which is adapted to engage in the notched end of dog 48, when clutch 44 is thrown into i I mesh ywith loose clutch 39, and thereby maintains the engagement of clutches 39 and 44 f/until released as is about to be described. At the lower end of rack 41 1s a lug or stop 5'? which is adapted as the rack is moved upwardly, to `meet the selected lug 55 011 plate 50 and thereby elevates the plate on its guide bars a suiicient amount to release the connection between dog 48 and' lug 56, whereupon clutch 44 willdisconnect from loose clutch 39 and connect with clutch 40 and cause the mechanism to become inoperative and to be lockedv to the said clutch 40. Shaft 46, to which fork 45 and lever 47 are connected is extended beyond gear housing 58 and is provided with suitable means 59 (Fig- 3) by which the shaft may be rotated' l by hand to cause clutch 44 to shift into connection Withclutch 39, the weight ofv lever 4T together with spring 47 being suflicient to break that connection when dogl 48 is released as above described. A dash pot 60 isprovided on plate 1G which servesias a shock'absorber for rack 41, the rack falling` b v gravity as soon as the engagement of clutches 39 and 44 is broken.

Plunger rod 3T is connected at its lower end to a suitable piston within cylinder 6l (Fig. 2). The cylinder is of the double acting type. It is supported within `and by housingrlO. Suction pipe (r2 is connected to the lower part of the cylinder and is connected to main suction pipe 63 which is eX- tended down into the storage tank or reservoir which is buried in the ground. A suitable footl valve 64 (Fig. 2) will also be placed in the suction line. Discharge pipe (i5 connects cylinder 61 to a suitable strainer (S6 and intermediate discharge pipe GTvconnects the strainer to main discharge pipe (SS which passes up into housing 14. A drain pipe 69 is provided in the bottom of T0 at its outer end.

An air chamber 71 is provided on discharge pipe (58 and a hose 72 is suitably7 connected to the pipe. which, when not in use may be wrapped about the inner periphery of housing 14, suitable lugs 73 on the standard Serving to support the hose.

In operation,` the housing' having been unlocked and opened by telescoping the upper portion upon the lower portion and the hose having been Withdrawn and handle 28 turned to the horizontal position, shaft 46 is rotated to throyv clutch 44 into mesh with clutch 39, thereby connecting the measuring rack 41 to the driving mechanism. Indicating needle 53 is adjusted to the selected graduation upon scale 54. CrankQ is then rotated to revolve the several shafts and gears thereon and segment gear 35 will cause rack 36 to travel up and down to operate the pump and force the liquid in the storage tank in a steady stream through the disstrainer G6 and is supplied with a drain cock charge pipe and hose or other discharge.

has been shifted and the pump cannot be clutch 39 as above described.

It will be seen that crank 27 is continuagain operated until clutch 44 is shifted to Aously rotated andI that the flow of\ liquid n from the discharge is constant, thereby affording a' great .s avingin-Y tlme over that required for the operation of all previous measuring pumps of which I am aware.

'The' device is also exceedingly accurate in mined quantity deliveries, 4after each of- 'its measurement of the liquid and may be provided with a large range of predeter- Which deliveries' the device' is automatically locked against: further operation, until it is i reset for another delivery of liquid.

-A means and adapted to abut ase ected stop andv means for automatically locking the revoluble means when the predetermined quantity has been discharged.

' .-2. The :combination with a pump mechanism, of -a rack connected to the mechanism," revolubly mounted means to reciprocate the rack, means to predetermlne the -quantityof' liquid to be discharged from the mechanism consisting of a series of adjustable stops and a movable stop having operative connection with' the revolubly mountedl means and adapted to abut a selected 4stop andmea'ns for-automatically..

- locking the .revoluble means comprislng a cl-utch mechanism having connectlon with therevoluble means and adapted to be held by the predeter'mining means in position for Arenderingthe pump operating means effectual and to be released thereby when the predetermined quantity4 has been discharged.

3'. The combination, with a pump mechainism, of a revoluble shaft having connection with .the )pump mechanism, a reciprocable rack, a fixed clutch member, a loose pinion on the. shaft and engaging the rack, shifting meanssecured t'o the shaft and normally erivgaging the fixed clutch andv adaptedto be connected tothe vloose pinion, means to ,lock the shifting meansand shaft to thel loose leasing. lthp,engagement of' the shifting means-and the .lose pinion whereupon the'- pjnlion, andfmeans 4on the rackadapted to engage the locking means lselectively for re- 4shifting means automatically 'engages the .fixed clutch and locks the shaft to said clutch.'` l.

4. The combination vvith-adouble acting pump mechanism, a continuously revoluble driving shaft connected to the mechanism, al

driven shaft having connection With the 'driving shaft, a fixed clutch member, a loose clutch member on the driven shaft, a clutch Islidably connected `to the driveir shaft and adapted to beconne'cted to'- eitl1er the fixed clutch ortheloosefclu'tch, means to shift the slidable clutch into engagement wlth the 5. The combination, with a pump mechanism, of a driven shaft having connection wlth lthe pump mechanism, a fixed clutch member, a loose clutch-gear, a reciprocable rack engaging the clutch-gear, a shifting clutch having connection with the shaft and adapted to be connected with either the fixed clutch or lthe clutch-gear, a lever having connection with the shifting-clutch, a member carryiirga plurality ofstops and adapted to engage'the lever and maintain the 'connection between the loose gear clutch and the shifting-clutch and' means on the rack adapted to engage a selected stop on the member for releasing the-lever whereupon the shifting clutch automatically disconnects from the loose gear .clutch and engages the. fixed clutch.

6. The combination with a pump mechanism of a revoluble shaft having driving connection With the pump mechanism, a second revoluble shaft 4having connection with the first named shaft, a loose pinion on the second shaft, a reciprocable rack engaging the pinion, a fixed clutch, means to connect the latter shaft to either the loose pinion or the fixed clutchfa member having a plurality of stops thereon and adapted to releasably engage the said means for locking the same to theloose pinion, and a stop on the rack adapted, as the rack is reciprocated,

to abut a selected stop on the member upon the completion 'of a predetermined number *ofi revolutions vof the shaft for releasing the 'normally engaging the fixed clutch and ladapted to be manually shifted into engagement with the loose pinion, a lever connected to the shifting-clutch, a scale graduated to indicate 'quantities of liquid to be pumped,

an adjustable stop carrier having stops thereon'x arranged, to correspond to the grad--l uations 4on the scale, and having meansto engage the lever for' locking the shifting- .clutch to the pinion, and a stop on the rack adapted to abut a selected stop on` the member 4as the rack-is reciprocated for releasing said member from the lever, whereupon the shifting member is automatically disengaged from the loose pinion and locks the shaft to the fixed clutch.

8. The combination with a double acting pump mechanism and a driving sha-ft connected thereto, of a driven shaft having connection with the driving shaft, a fixed clutch, a rack and pinion adapted to be connected to the driven shaft, means to connect the latter shaft to either the fixed clutch or the rack and pinion, a movable selective stop carrier vadapted to engage the latter means for locking the same to the rack and pinion, and a stop on the rack adapted to disengage the stop carrier from said means upon the completion of a selected number of revolutions of the shafts, whereupon the said means automatically disengages from the rack and pinion and engages the fixed clutch for locking the shafts.

9. The combination with a double acting pump cylinder, a double rack connected to v the cylinder plunger, a segment-gear adapted to reciprocate the rack and plunger, revoluble means having a connection to the segment-gear, a fixed clutch, an idler clutchpinion, shifting means to lock the revoluble means to either the fixed clutch or the clutch pinion, a selective stop-carrier adapted to hold the shifting means in engagement with the clutch-pinion, and means driven by the clutch-pinion adapted to engage a selected stop on Vthe stop-carrier for releasing the shifting means, whereupon the shifting 35 means automatically disengages from the clutch pinion and engages the fixed clutch for locking the revoluble means.

In witness whereof I hereunto subscribe my name this 14: day of December, 1915.

NATHANIEL D. HULL. 

